lesson 1 and 2 Flashcards
What is the definition of superior (cranial)?
Upper part of the body
What is the definition of inferior (caudal)?
Lower part of the body
What is the definition of medial?
Middle part of the body
What is the definition of anterior (ventral)?
Front; body surface
What is the definition of posterior (dorsal)?
Back of the body
What is the definition of lateral?
Outer part of the body
What is the definition of intermediate?
Between medial and lateral
What is the definition of proximal?
Close to the origin
What is the definition of distal?
Farther from the origin
What is the function of the nucleus?
Control center (DNA)
What is the function of the nuclear membrane?
Barrier double phospholipid membrane
What travels through nuclear pores?
Ribosomes
What is chromatin?
DNA and protein scattered throughout the nucleolus
What is the function of the plasma membrane?
Barrier double phospholipid layer
What are the specializations of the plasma membrane?
Microvilli, membrane junctions
What is cytoplasm?
Materials outside the nucleus and plasma membrane
What is membrane transport?
Movement of substances in and out of the cell
What does membrane transport involve?
Movement of substances across the cell membrane
Why is membrane transport important?
Allows the cell to obtain necessary nutrients and eliminate waste products
What are the two main types of membrane transport?
Passive transport and active transport